Bottom line: the iOS multitasking bar is not like the command tab switcher on Mac or Windows. It is not a list of currently “running” applications. It is simply a list of your most recently used applications, whether they’re running in the background, suspended in memory, or completely inactive. Notice, for example, that if you turn an iOS device off and on, completely restarting the device, the multitasking tray still shows the same apps. It’s like your browser history.